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Re: libcurl segfaults in curl_multi_perform

From: Rainer Canavan <>
Date: Thu, 24 Mar 2016 12:57:22 +0100

On Thu, Mar 24, 2016 at 12:50 PM, Daniel Stenberg <> wrote:
> On Thu, 24 Mar 2016, Alex Lyakas wrote:
>> We upgraded the libcurl to 7.45.0. After several weeks, the same or very
>> similar problem happened 3 times within 24 hours, unfortunately.
> Did you upgrade OpenSSL? It looks more like a problem in OpenSSL so I
> suspect just upgrading libcurl won't help for this.
> Further, if the problem remains I think you should consider building custom
> versions of libcurl and openssl with debug systems present so that future
> crashes get more details provided. I'd also urge you to try to come up with
> a way to reproduce the problem since just randomly occuring crashes are
> notoriously hard to work with.

In any case, you should at least install libssl1.0.0-dbg to get the debug
symbols for libcrypto. If you're using packages for libcurl, install
as well, If you're compiling libcurl yourself, compile and link with -g.

List admin:
Received on 2016-03-24